I'm trying to make a website to work over SSL but the Google Fonts aren't working...

The page source is quite explaining: Google fonts are being loaded over HTTP. The Template Nocture has, of course, a dynamic setting for these kind of Fonts, so I can't alter the URL manually in any of the present stylesheets.
The URL of the site is: http://bzvfanforum.nl and/or https://bzvfanforum.nl
Help would be appreciated!
Thanks,
Robert